531130499 has 2 divisors, whose sum is σ = 531130500. Its totient is φ = 531130498.

The previous prime is 531130489. The next prime is 531130511. The reversal of 531130499 is 994031135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531130499 - 2¹² = 531126403 is a prime.

It is not a weakly prime, because it can be changed into another prime (531130429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265565249 + 265565250.

It is an arithmetic number, because the mean of its divisors is an integer number (265565250).

Almost surely, 2^531130499 is an apocalyptic number.

531130499 is a deficient number, since it is larger than the sum of its proper divisors (1).

531130499 is an equidigital number, since it uses as much as digits as its factorization.

531130499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 531130499 is about 23046.2686567696. The cubic root of 531130499 is about 809.8422184164.

The spelling of 531130499 in words is "five hundred thirty-one million, one hundred thirty thousand, four hundred ninety-nine".